Parse numbers changing

I uploaded a log, it said our hunter pulled a purple 80. (https://www.warcraftlogs.com/reports/GWNALgnmQCaXMZkY)

Her character page shows a green 70. (https://www.warcraftlogs.com/character/us/area-52/krisalyn#difficulty=3)

Which is it and why does it change a day after it was logged?